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Question
Choose the correct answer from the options given below:
The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:
[Given that H = 1, O = 16]
Options
1: 2
1: 0.01
1: 1
0.01: 1
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Solution
1: 1
1 mole of hydrogen ≡ 1 g of hydrogen
1 mole of hydrogen ≡ 6.023 × 1023 molecules
1 g of hydrogen ≡ 6.023 × 1023 molecules
2 g of hydrogen ≡ 1.204 × 1024 molecules
1 mole of oxygen ≡ 16 g of oxygen
1 mole of oxygen ≡ 6.023 × 1023 molecules
16 g of oxygen ≡ 6.023 × 1023 molecules
32 g of oxygen ≡1.204 × 1024 molecules
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